Body portion of an electrical string musical instrument



FIG. 1 is a front elevation view of a body portion of an electrical string musical instrument showing our new design; and,

FIG. 2 is a rear elevation view thereof.

The broken lines in FIGS. 1 and 2 are for illustrative purposes only to show environment and form no part of the claimed design. 

The ornamental design for a body portion of an electrical string musical instrument, as shown and described. 